Add new setting PYPI_PATH_PREFIX

https://redhat.atlassian.net/browse/PULP-1318

Author: gerrod3

CHANGES/+pypi-path-prefix.feature

@@ -0,0 +1 @@
+Added new setting PYPI_PATH_PREFIX to allow for customizing the path prefix for the PyPI API.

docs/admin/reference/settings.md

@@ -13,3 +13,9 @@
 > This specifies the hostname where the PyPI API is served. It defaults to the fully qualified
 > hostname of the system where the process is running. This needs to be adjusted if running behind
 > a non local reverse proxy.
+
+## PYPI_PATH_PREFIX
+
+> This specifies where the PyPI endpoints can be found at. It defaults to `/pypi/`. The value is
+> used along with `PYPI_API_HOSTNAME` to generate the links to the PyPI endpoints and should start
+> and end in a slash.

pulp_python/app/pypi/views.py

@@ -59,7 +59,7 @@
 
 ORIGIN_HOST = settings.CONTENT_ORIGIN if settings.CONTENT_ORIGIN else settings.PYPI_API_HOSTNAME
 BASE_CONTENT_URL = urljoin(ORIGIN_HOST, settings.CONTENT_PATH_PREFIX)
-BASE_API_URL = urljoin(settings.PYPI_API_HOSTNAME, "pypi/")
+BASE_API_URL = urljoin(settings.PYPI_API_HOSTNAME, settings.PYPI_PATH_PREFIX)
 
 PYPI_SIMPLE_V1_HTML = "application/vnd.pypi.simple.v1+html"
 PYPI_SIMPLE_V1_JSON = "application/vnd.pypi.simple.v1+json"

pulp_python/app/serializers.py

@@ -9,6 +9,7 @@
 from rest_framework import serializers
 from pypi_attestations import AttestationError
 from pydantic import TypeAdapter, ValidationError
+from urllib.parse import urljoin
 
 from pulpcore.plugin import models as core_models
 from pulpcore.plugin import serializers as core_serializers
@@ -31,6 +32,7 @@
 )
 
 log = logging.getLogger(__name__)
+PYPI_BASE_URL = urljoin(settings.PYPI_API_HOSTNAME, settings.PYPI_PATH_PREFIX)
 
 
 @extend_schema_serializer(
@@ -92,8 +94,8 @@ class PythonDistributionSerializer(core_serializers.DistributionSerializer):
     def get_base_url(self, obj):
         """Gets the base url."""
         if settings.DOMAIN_ENABLED:
-            return f"{settings.PYPI_API_HOSTNAME}/pypi/{get_domain().name}/{obj.base_path}/"
-        return f"{settings.PYPI_API_HOSTNAME}/pypi/{obj.base_path}/"
+            return urljoin(PYPI_BASE_URL, f"{get_domain().name}/{obj.base_path}/")
+        return urljoin(PYPI_BASE_URL, f"{obj.base_path}/")
 
     class Meta:
         fields = core_serializers.DistributionSerializer.Meta.fields + (

pulp_python/app/settings.py

@@ -2,6 +2,7 @@
 
 PYTHON_GROUP_UPLOADS = False
 PYPI_API_HOSTNAME = "https://" + socket.getfqdn()
+PYPI_PATH_PREFIX = "/pypi/"
 
 DRF_ACCESS_POLICY = {
     "dynaconf_merge_unique": True,

pulp_python/app/urls.py

@@ -10,9 +10,10 @@
 )
 
 if settings.DOMAIN_ENABLED:
-    PYPI_API_URL = "pypi/<slug:pulp_domain>/<path:path>/"
+    PYPI_API_URL = "/<slug:pulp_domain>/<path:path>/"
 else:
-    PYPI_API_URL = "pypi/<path:path>/"
+    PYPI_API_URL = "/<path:path>/"
+PYPI_API_URL = settings.PYPI_PATH_PREFIX.strip("/") + PYPI_API_URL
 # TODO: Implement remaining PyPI endpoints
 # path("project/", PackageProject.as_view()), # Endpoints to nicely see contents of index
 # path("search/", PackageSearch.as_view()),